Give One Example Each Of A Salt Which Gives An Aqueous Solution Having Ph Less Than 7

Give one example each of a salt which gives an aqueous solution having : (a) pH less than 7 (b) pH equal to 7 (c) pH more than 7


(a) Ammonium chloride, NH4Cl

(b) Sodium chloride, NaCl

(c) Sodium carbonate, Na2CO3